Vulcanus runs on your own machine — the client starts it, so there is no endpoint to ping. 84 installs a week from npm. Last commit 9 Nov 2026.
A validated Markdown memory vault your coding agent can recall, project by project.
What the code does
We read the source, 14 h ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
child = spawn(launch.command, launch.args, { cwd, stdio: "inherit" });
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Connect this server
This server runs on your own machine — install it with the package manager and the client starts it for you. Package name taken from the official registry entry.
claude mcp add vulcanus -- npx -y @sunsato/vulcanus{
"mcpServers": {
"vulcanus": {
"command": "npx",
"args": [
"-y",
"@sunsato/vulcanus"
]
}
}
}[mcp_servers.vulcanus]
command = "npx"
args = ["-y", "@sunsato/vulcanus"]{
"mcpServers": {
"vulcanus": {
"command": "npx",
"args": [
"-y",
"@sunsato/vulcanus"
]
}
}
}{
"servers": {
"vulcanus": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@sunsato/vulcanus"
]
}
}
}Alternatives to Vulcanus
same job, measured the same wayLong-term memory for AI coding agents, kept as Markdown you own. Runs locally.
Git-native project memory for AI coding agents: Markdown source of truth, reviewable, secret-safe.
Memory for AI coding agents — markdown in your own git, not a vendor database. Apache-2.0.
Long-term memory for AI coding agents: durable project facts, recalled by every MCP client.
Inspectable, correctable project memory in git-versioned Markdown for AI agents.
Project memory and a control plane for AI coding agents.
Project memory for coding agents whose memories carry code evidence, re-checked on every recall.
Shared Graph-RAG memory for AI agents: markdown vault, wikilink recall, tasks, messaging.
Vulcanus — questions
Answers built from our own checks of this server.